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Your Position: Home > Protein > Siglec-15 > SG5-H82F5

Biotinylated Human Siglec-15 / CD33L3 Protein, Fc,Avitag™

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  • Synonym
    CD33 antigen-like 3,SIGLEC-15,CD33L3,sialic acid-binding Ig-like lectin 15,Siglec15,Siglec-15
  • Source
    Biotinylated Human Siglec-15, Fc,Avitag(SG5-H82F5) is expressed from human 293 cells (HEK293). It contains AA Phe 20 - Thr 263 (Accession # Q6ZMC9-1).
    Predicted N-terminus: Phe 20
  • Molecular Characterization
    Siglec-15 Structure

    This protein carries a human IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™).

    The protein has a calculated MW of 54.8 kDa. The protein migrates as 58 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Labeling
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Protein Ratio
    Passed as determined by the HABA assay / binding ELISA.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Siglec-15 SDS-PAGE

Biotinylated Human Siglec-15, Fc,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity-ELISA
 Siglec-15 ELISA

Immobilized Mouse Human chimeric MAb (5G12, Human IgG1) at 5 μg/mL (100 μL/well) can bind Biotinylated Human Siglec-15, Fc,Avitag (Cat. No. SG5-H82F5) with a linear range of 0.4-3 ng/mL (QC tested).

Bioactivity-BLI
 Siglec-15 BLI

Loaded Biotinylated Human Siglec-15, Fc,Avitag (Cat. No. SG5-H82F5) on SA Biosensor, can bind Human CD44, Fc Tag (HPLC-verified) (Cat. No. PG1-H5255) with an affinity constant of 926 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

Bioactivity-Bioactivity CELL BASE
 Siglec-15 CELL

Biotinylated Human Siglec-15, Fc,Avitag (Cat. No. SG5-H82F5) inhibits Anti-CD3-induced proliferation of PBMC. The ED50 for this effect is 0.48-0.57 μg/mL (Routinely tested).

  • Background
    Siglec-15 is a DAP12-associated immunoreceptor, which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. Siglecs are cell surface proteins that bind sialic acid. They are found primarily on the surface of immune cells and are a subset of the I-type lectins. Siglec-15 consisting of immunoglobulin (Ig)-like domains, transmembrane domain and a short cytoplasmic tail. Siglec-15 is that recognizes sialylated glycans and regulates osteoclast differentiation. Siglec-15 is a potential therapeutic target for osteoporosis and plays a conserved regulatory role in the immune system of vertebrates.
  • Clinical and Translational Updates

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  • Number of Drugs in Clinical Trials:3 Details
  • Latest Research Phase:Phase 2 Clinical

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